RECORD: Darwin, C. R. n.d. On forms being considered distinct when found in very distant localities. CUL-DAR205.10.67. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 5.2023. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR205.10 contains notes on variation and varieties. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.
Haldeman, S. S. 1843-44. 'Enumeration of the Recent Freshwater Mollusca which are common to North America and Europe; with observations on Species and their Distribution.' Boston Journal of Natural History, 4, 468-84. IV, 39.
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On species forms being considered distinct, when found in very distant localities under Boston Journal Geograph. Distri. of Animals
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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 24 July, 2023